Difference between revisions of "Tōkyō Kōgaku lenses in Leica screw mount"
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* [http://www003.upp.so-net.ne.jp/Topconclub/lens6.htm Tōkyō Kōgaku 39mm screw lenses] at the [http://www003.upp.so-net.ne.jp/Topconclub/ Topcon Club website] | * [http://www003.upp.so-net.ne.jp/Topconclub/lens6.htm Tōkyō Kōgaku 39mm screw lenses] at the [http://www003.upp.so-net.ne.jp/Topconclub/ Topcon Club website] | ||
− | * | + | * Pages of [http://www.cameraguild.jp/nekosan/ Nekosan's website]: |
** [http://www.cameraguild.jp/nekosan/simlar9cm.htm C Simlar 9cm f/4] | ** [http://www.cameraguild.jp/nekosan/simlar9cm.htm C Simlar 9cm f/4] | ||
** [http://www.cameraguild.jp/nekosan/leotax.htm Leotax page] with Tōkyō Kōgaku 39mm screw lenses | ** [http://www.cameraguild.jp/nekosan/leotax.htm Leotax page] with Tōkyō Kōgaku 39mm screw lenses |
Revision as of 17:19, 18 January 2007
Tōkyō Kōgaku (the maker of the Topcon cameras) made lenses in 39mm Leica mount for some Japanese Leica copies, mainly the Leotax. All were all chrome unless noted. The chronological order is State - C Simlar - Simlar - Topcor - Topcor S.
- 35/2.8 Topcor, sold with a very big external finder
- 50/3.5 State (collapsible)
- 50/3.5 C Simlar (collapsible)
- 50/3.5 Simlar (collapsible)
- 50/3.5 Topcor (collapsible), diaphragm ring around the front lens, then around the barrel
- 50/3.5 Topcor K (rigid), aluminium barrel and knurled rings
- 50/2.8 Topcor, black and chrome finish
- 50/2 Topcor
- 50/2 Topcor S, chrome, then black and chrome, then black with aluminium barrel
- 50/1.8 Topcor S, black finish
- 50/1.5 Simlar
- 50/1.5 Topcor
- 9cm f/4 C Simlar[1]
- 90/3.5 Topcor, aluminium barrel and knurled rings, sold with an external finder
- 135/3.5 Topcor, aluminium barrel, sold with an external finder with 50/90/135 frames
Notes
Links
In Japanese:
- Tōkyō Kōgaku 39mm screw lenses at the Topcon Club website
- Pages of Nekosan's website:
- C Simlar 9cm f/4
- Leotax page with Tōkyō Kōgaku 39mm screw lenses